Ball Knobs are spherical shaped handwheels ideal for threading onto threaded rod. We offer 2 styles, wither with a plastic moulded thread or a metal thread. We can supply 4 different sizes from 20mm diameter ball knob to 50mm diameter. Ball knobs accept a variety of thread sizes from M6 up to M12. Ball knobs are an attractive way to finish threaded bar, display stands, levers and equipment. We now offer Stainless Steel ball knobs that are ideal for corrosion free applications. Our tapered range offers a more low-profile finish to your display stands and other equipment and come in either a matte or gloss finish.